This extension is so great ! I'm using only the user agent spoofing which is great, it uses common UAs and works well compared to "random user agent" extension (which is not even open source).
I'm using it in combination to CanvasBlocker which I prefer to know what sites have requested, but the choice is hard between these 2 outstanding extensions.

Thank you !

The only "issue" I had is I cannot prevent website from detecting my GPU.